The neutral linear polysaccharide fraction found in agar preparations, generally composed of d-galactose and altered 3,6-anhydrogalactose residues; used in chromatography and electrophoresis.
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aga·rose 'ag-ə-.rōs, 'äg-, -.rōz n a polysaccharide obtained from agar that is used esp. as a supporting medium in gel electrophoresis
Medical dictionary. 2011.